AirHint found the following cheapest return flights from Montreal (YUL) to Shanghai (PVG) in September 2025 (see full year).

Return flights

18 Sep - 14 Oct	WestJet
10 Sep - 17 Sep	WestJet
15 Sep - 22 Sep	WestJet
11 Sep - 18 Sep	WestJet
09 Sep - 16 Sep	WestJet
12 Sep - 19 Sep	WestJet
16 Sep - 23 Sep	Porter Airlines (Canada) Ltd
03 Sep - 10 Sep	WestJet
04 Sep - 11 Sep	WestJet
13 Sep - 20 Sep	WestJet
14 Sep - 21 Sep	Porter Airlines (Canada) Ltd
29 Sep - 06 Oct	WestJet
26 Sep - 03 Oct	WestJet
24 Sep - 01 Oct	Condor
30 Sep - 07 Oct	Condor
25 Sep - 02 Oct	Air Canada
28 Sep - 05 Oct	Air Canada
27 Sep - 04 Oct	Air Canada

Also check the deals for one-way flights from Montreal to Shanghai in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Montreal to Shanghai in September from $983

Return flights